- the iron end member of the olivine group, Fe2SiO4.
Origin of fayalite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a rare brown or black mineral of the olivine group, consisting of iron silicate. Formula: Fe 2 SiO 4
Word Origin for fayalite
C19: named after Fayal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- See under olivine.
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